* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "微软雅黑";
}

ul{
    list-style: none;
}

/* 取消输入框默认边框样式 */

input,textarea{
    outline: none;
    border: none;
}

button{
    border: none;
}
button:focus{
    outline: none;
}

a{
    text-decoration: none;
}